Thank you for you reply Keith. What should I do to track down the problem. And yes heat may be the cause, If I switch it off for 15mins alls fine for a while. Would it be diificult to fix and or expensive? regards Kharon at Paradise

Help can any one help? my avant picture keeps disapearing after 10 mins or so then goes black sound still good. picture returns after a while just to disapear again no problem with the picture quality when it is there? any suggestions